Improvement in lamps



8. MARSHAL-L.

I Lamp Burner.

Patented Aug. 19, 1862.

UNITED STATES PATENT OFF CE.

SAMUEL MARSHALL, OF WVILMINGTON, DELAWARE.

IMPROVEMENT IN LAMPS}.

Specification forming part of Letters Patent No. 36,226, dated August19, 1862.

To all whom it may concern: Be it known that I, SAMUEL MARSHALL, ofWilmington, in the county of New Castle and v State of Delaware, haveinvented a new and useful Improvement in Lamps; and I do hereby declarethat the following is a full, clear,

. and exact description of the same, reference Fig. 2, indicating theplane of section,.whic his at right angles to the plane of section Fig.1.

Similar letters of reference indicate corre-. sponding parts in theseveral figures.

This invention consists in adapting, by a simple contrivance, anordinary fluid-lamp to the burning of coal-oil without a chimney, and bysuch a means that will admit of being adjusted to, suit the height ofthe wick-tube, and be capable of being manufactured and sold separatelyand applied to any ordinary fluidlamp in use.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents an ordinary fluid-lamp; B, the cap; and O, the wicktube,which is of theordiarxof nary cylindrical form. These parts, beingcommon and well known, do not require a minute descriptiom D representswhat may be termed a supplemental cap, which is of semi-spherical formand slotted at its upper convex end, as shown also. This supplementalcap encompasses the upper end of the wick-tube O, and it is attached toa curved metal plate, E, the lower end of which is fitted on thewick-tube and rests on the top of the cap B proper of the lamp A. Theupper end of the plate E is in a horizontal position, and it forms abottom for the supplemental cap D, two recesses or notches, b b, beingmade in it, and also in the lower edge of D, one at each side, to admitair into D.

By straightening or bending the plate E the supplemental cap D may beraised or lowered to suitthe height of the wick-tube G, and thereforeadmit of D being adjusted in a proper relative position with the top ofthe wick-tube O. This is an important feature of the invention, for itadmits ofthe supplemental cap being made and sold separately withoutreference to the dimension or style of the lamp to which it may beapplied. The upper horizontal part of the plate E is provided with ahole to admit of the wick-tubeO passingthrou gh the plate, and thesupplemental, cap D, therefore, is supported and retained in proper position by the wick-tube, the-former being pre- Vented from moving orshifting laterally out of its proper place. i

The supplemental cap D,it will be seen, causes a draft or current of airto be supplied to the flame, as indicated by the arrows in Figs. 1 and3, and a draft-chimney, therefore, isdispensed with.

The invention may be applied to a flatwicktube with equally as goodresults as to a round wick-tube, and, if necessary, two plates orsupports, E, may .be used, instead of one; but

for wick tubes of ordinarysizeone plate, E, will be sufficient.

This invention has been practically tested and has been found to answeradmirably well, especially when the lamp is stationary. If the latter ismoved about, the flame will flicker some and smoke a trifle, but notsufficiently to be an annoyance.

I do not claim, broadly, the application of the supplemental cap D'tothe wick-tube 0;

but

I do claim as new and desire to secure by Letters Patent The attachingof the supplemental cap D to the lamp by means of one or more curved orbent plates, E, arranged, as shown, so as to support the cap D and admitof its being adjusted higher or lower to suit the height of thewick-tube and at the same time admit of the wick-tube passing through itat its upper part to prevent any lateral movement or shifting of thecap, as and for the purpose herein set forth. I

SAMUEL MARSHALL. Witnesses:

J. H. JACKSON, JOHN T. RoBINsoN.

